Cheap flights from London Heathrow Airport to Boston from £332

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOS
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Boston Logan Intl are usually found in February or September, booked 50 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Heathrow to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 November 2025.

Round-trip from

£366

One-way from

£332

Popular in

December

Cheapest in

February

Average price

£447

Good round-trip deal

£486 or less

Good one-way deal

£389 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 30/1-5/2
  • 2 total stops
  • 27h 10m total
  • London to Boston
Finnair
  • Finnair
  • 14/3
  • 2 total stops
  • 16h 39m total
  • London to Boston
Highest demand for flights based on searches. 3% potential increase in price (£14 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in November 2025
Price to beat on a round-trip flight from London Heathrow to Boston Logan Intl.
Price to beat on a one-way flight from London Heathrow to Boston Logan Intl.

Find flight deals from Heathrow to Boston

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Boston
Explore the most affordable flight options available from Heathrow to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2025.

Fri 21/1119:55LHR - BOS
1 stop23h 40mTAP AIR PORTUGAL
Sat 29/1122:25BOS - LHR
1 stop12h 05mTAP AIR PORTUGAL
Deal found 20/11£367
Wed 3/1212:15LHR - BOS
1 stop27h 20mIcelandair
Wed 10/1219:50BOS - LHR
1 stop18h 40mIcelandair
Deal found 18/11£370
Fri 5/1220:35LHR - BOS
1 stop26h 15mIcelandair
Sat 13/1211:35BOS - LHR
1 stop18h 15mIcelandair
Deal found 19/11£371
Tue 2/1220:35LHR - BOS
1 stop26h 15mIcelandair
Tue 9/1219:50BOS - LHR
1 stop10h 00mIcelandair
Deal found 18/11£373
Fri 5/1220:35LHR - BOS
1 stop26h 15mIcelandair
Tue 9/1219:50BOS - LHR
1 stop10h 00mIcelandair
Deal found 19/11£373
Wed 10/1212:15LHR - BOS
1 stop10h 35mIcelandair
Wed 17/1211:35BOS - LHR
1 stop18h 15mIcelandair
Deal found 19/11£375
Sat 6/1220:35LHR - BOS
1 stop19h 00mIcelandair
Wed 17/1211:35BOS - LHR
1 stop18h 15mIcelandair
Deal found 19/11£376
Tue 25/1120:35LHR - BOS
1 stop19h 00mIcelandair
Tue 2/1219:50BOS - LHR
1 stop10h 00mIcelandair
Deal found 18/11£376
Sat 29/1113:40LHR - BOS
1 stop29h 55mTAP AIR PORTUGAL
Sat 6/1222:25BOS - LHR
1 stop33h 15mTAP AIR PORTUGAL
Deal found 20/11£377
Thu 27/1112:15LHR - BOS
1 stop10h 35mIcelandair
Tue 2/1219:50BOS - LHR
1 stop18h 40mIcelandair
Deal found 19/11£378
Wed 26/1120:35LHR - BOS
1 stop19h 00mIcelandair
Wed 3/1219:50BOS - LHR
1 stop10h 00mIcelandair
Deal found 18/11£379
Fri 5/1220:35LHR - BOS
1 stop26h 15mIcelandair
Wed 17/1211:35BOS - LHR
1 stop18h 15mIcelandair
Deal found 19/11£379

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Boston that are best for you.

Fly from

Heathrow

Fly to

Boston

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 18/1

12:15-17:50

1 stop10h 35m

Boston Logan Intl

Fri 30/1

19:50-10:50

1 stop10h 00m

£399

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 8/12

20:35-17:50

1 stop26h 15m

Boston Logan Intl

Sat 17/1

19:50-10:50

1 stop10h 00m

£435

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 8/12

20:35-17:50

1 stop26h 15m

Boston Logan Intl

Mon 15/12

19:50-19:30

1 stop18h 40m

£436

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 12/1

06:50-17:14

2 stops15h 24m

Boston Logan Intl

Mon 19/1

18:17-10:25

1 stop11h 08m

£442

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 13/1

09:20-12:16

Nonstop7h 56m

Boston Logan Intl

Tue 20/1

19:10-06:55

Nonstop6h 45m

£442

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 19/2

13:30-15:55

Nonstop7h 25m

Boston Logan Intl

Thu 26/2

21:35-09:15

Nonstop6h 40m

£444

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 8/12

07:30-13:25

1 stop10h 55m

Boston Logan Intl

Mon 15/12

16:20-10:50

2 stops13h 30m

£446

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 20/4

17:35-20:05

Nonstop7h 30m

Boston Logan Intl

Mon 27/4

19:30-07:05

Nonstop6h 35m

£456

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 10/1

08:50-17:50

2 stops14h 00m

Boston Logan Intl

Sat 17/1

19:50-13:25

2 stops12h 35m

£458

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 23/4

09:40-12:15

Nonstop7h 35m

Boston Logan Intl

Sat 2/5

23:10-11:00

Nonstop6h 50m

£459

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 21 results
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2
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Best time to book a flight from Heathrow to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Boston

How far ahead should I book a flight from London Heathrow Airport to Boston?

Use this chart to determine the optimal time to book a return flight from Heathrow to Boston. Price data was last updated on 14 November 2025.

The best time to book flights from London Heathrow Airport to Boston is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Boston?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of £324). Flying from London Heathrow Airport to Boston in July is currently the most expensive (average of £384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to BOS?

Find hourly flight availability from Heathrow to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 November 2025.

When flying from London Heathrow Airport to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 29% versus a flight in the evening.

What is the cheapest day to fly from London Heathrow Airport to Boston?

Use this chart to determine the cheapest time to fly return from Heathrow to Boston. Price data was last updated on 2 November 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Boston flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from London Heathrow Airport to Boston?

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated 21 November 2025.
Get a feel of what it's like to fly with KLM, Virgin Atlantic, andAir France from London Heathrow Airport to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Boston from London Heathrow?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from London Heathrow. On average, Logan Intl has 29 inbound flights from London Heathrow per day from 16 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • How long is the flight from London Heathrow Airport to Boston?

    There are many flights that can get you from London Heathrow Airport to Boston in 7h 56m. Fly via Icelandair, United Airlines, or JetBlue to get the fastest option. The distance between London Heathrow Airport and Boston is about 3254 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Boston round-trip?

    Our cheapest airline available from London Heathrow Airport to Boston is TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £290 on this airline. Additional options worth looking into are Scandinavian Airlines and Lufthansa, starting at £307 and £312 round-trip. TAP AIR PORTUGAL is priced at 38% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from London Heathrow Airport to Boston?

    Consider Gulf Air (97%), Malaysia Airlines (95%) or Scandinavian Airlines (92%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Boston.

  • What are the cheapest flights from London Heathrow Airport to Boston?

    The cheapest flight price from London Heathrow Airport to Boston is £312. On average you can expect to pay £1,515. The most popular route, (London Heathrow - Boston Logan Intl), can usually be booked for £337.

  • Can I find deals for flights from Heathrow to Boston that include hotel bookings?

    Yes. In addition to deals on Heathrow to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Boston.

  • Can I find deals for business class flights from Heathrow to Boston?

    Yes. Cheapflights offers flight deals from Heathrow to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Boston?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of £324). Flying from London Heathrow Airport to Boston in July is currently the most expensive (average of £384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Cambridge
Peabody
Somerville
Quincy
Waltham
Chelmsford

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Fly from Heathrow to Boston on these airlines

Choose from the following airlines for your flight from Heathrow to Boston. Flights are based on user searches made on Cheapflights and were last updated on 21 November 2025.

Top 10 airlines flying from Heathrow to Boston

Discover the top 10 airlines that operate flights from Heathrow to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£290Average£414FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£307Average£460FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£312Average£414FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£338Average£451FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£342Average£394FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IcelandairCheapest£346Average£430FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapest£351Average£500FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapest£360Average£567FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest£360Average£471FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£360Average£487FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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How does Cheapflights help users find flights from Heathrow to Boston?

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Why should you use Cheapflights to find cheap flight tickets from Heathrow to Boston?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Boston from Heathrow.

Can Cheapflights find flights from Heathrow to Boston with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Boston flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Boston become cheaper?

Yes! Start tracking prices for Heathrow to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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